The Comelec website has this Precinct Finder, which is a very cool thing. For one thing, it tells you exactly where to go to vote on May 10.
Even cooler, it tells you exactly where anyone will be going to vote on May 10, provided you know their full name and date of birth. For example...
GLORIA MACARAEG MACAPAGAL ARROYO / April 05, 1947
PAMPANGA, LUBAO, LUBAO EAST CENTRAL ELEM. SCHOOL
BENIGNO SIMEON III COJUANGCO AQUINO / February 08, 1960
TARLAC, CITY OF TARLAC, CENTRAL ELEMENTARY SCHOOL
MANUEL JR. BAMBA VILLAR / December 13, 1949
NCR - FOURTH DISTRICT, CITY OF LAS PIÑAS, STI COVERED COURT
GILBERTO, JR. COJUANGCO TEODORO / June 14, 1964
TARLAC, MAYANTOC, CARABAOAN ELEM. SCHOOL
JOSEPH EJERCITO ESTRADA / April 19, 1937
NCR - SECOND DISTRICT, SAN JUAN CITY, PEDRO CRUZ ELEMENTARY SCHOOL
RICHARD JUICO GORDON / August 05, 1945
ZAMBALES, OLONGAPO CITY, EAST TAPINAC ELEMENTARY SCHOOL
EMMANUEL DAPIDRAN PACQUIAO / December 17, 1978
SARANGANI, KIAMBA, KIAMBA, CENTRAL ELEMENTARY SCHOOL
MANUEL ARANETA ROXAS / May 13, 1957
CAPIZ, ROXAS CITY, RUFINA ANDRADA SANTOS MEM. SCHOOL
IMELDA ROMUALDEZ MARCOS / July 02, 1929
ILOCOS NORTE, BATAC CITY, M. MARCOS MEM. ELEM. SCHOOL
FIDEL VALDEZ RAMOS / March 18, 1928
PANGASINAN, ASINGAN, NARCISO R. RAMOS ELEMENTARY SCHOOL
I was hoping to find some prominent political personality who scandalously is not registered to vote, but so far have had no such luck.